fix(discover): 添加积分不足检查

- 在进入房间前检查用户积分是否足够
- 积分不足时显示提示信息并阻止进入
- 避免无积分用户误操作进入房间

lib/controller/discover/room_controller.dart

@@ -201,6 +201,10 @@ class RoomController extends GetxController with WidgetsBindingObserver {
       SmartDialog.showToast(response.data.message);
       return;
     }
+    if (!response.data.data['success']) {
+      SmartDialog.showToast('积分不足');
+      return;
+    }
     currentRole = role;
     if (role == CurrentRole.maleAudience ||
         role == CurrentRole.femaleAudience) {